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Finding the Fourth Proportional to 238,697.33, 329,410.97 and 136,742.49

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Solution

The fourth proportional to 238,697.33, 329,410.97 and 136,742.49 is: 188,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,697.33 : 329,410.97 = 136,742.49 : x
  2. Step 2: Convert to fraction form
    238,697.33/329,410.97 = 136,742.49/x
  3. Step 3: Cross multiply
    238,697.33x = 329,410.97 × 136,742.49
  4. Step 4: Simplify right side
    238,697.33x = 45,044,476,612.97
  5. Step 5: Solve for x
    x = 45,044,476,612.97/238,697.33
  6. Step 6: Final answer
    x = 188,709.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.